I’ve recently built 6.0.16 from source in order to get access to the S3/blobstore backup fixes. We’re running it in staging at the moment and it seems to be working well. Using a relatively small working set for testing (~20GB), we’ve successfully verified restoring from backups. However, I am curious about potential trade-offs using the duration switch in continuous mode with much larger working sets on restore.
I’ve read this post here Trying to understand the backup mechanism better. From the description, apparently this feature allow you to amortize the cost of backups over the specified window, with the default being 10 days, that’s great.
I’m wondering though if this will have a significant impact on mean time to rebuild during an fdbrestore. So far on small data sets the restore process has been relatively quick. Does anyone have any experience with continuous mode backups on larger working sets and if so is there is any relationship between mean time to restore and --snapshot_interval?